<template>
  <div>
    <!-- 面包屑导航区域-->
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/welcome' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>
    <!-- 卡片视图区域-->
    <el-card>
      <!-- 搜索与添加区域-->
      <el-row :gutter="20">
        <el-col :span="8">
          <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- border 边框线-->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index" label="#"></el-table-column>
        <el-table-column label="姓名" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- 修改按钮-->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <!-- 删除按钮-->
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
            <!-- 分配角色-->
            <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="showSetRoleDialog(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange" :current-page="queryInfo.pagenum"
        :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize" layout="total, sizes, prev, pager, next, jumper"
        :total="total">
      </el-pagination>
    </el-card>

    <!-- 添加用户对话框 -->
    <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @close="addDialogClosed" :close-on-click-modal="false">
      <!-- 添加用户表单区域 -->
      <el-form ref="addUserFormRef" :model="addUserForm" :rules="addUserFormRules" label-width="70px" class="login_form">
        <!-- 用户名 prop-验证规则 -->
        <el-form-item label="用户名" prop="username">
          <el-input v-model="addUserForm.username"></el-input>
        </el-form-item>
        <!-- 密码 -->
        <el-form-item label="密码" prop="password">
          <el-input v-model="addUserForm.password" type="password"></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="addUserForm.email"></el-input>
        </el-form-item>
        <!-- 电话 -->
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="addUserForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="addDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="addUser">确 定</el-button>
      </span>
    </el-dialog>

    <!-- 修改用户对话框 -->
    <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="50%" @close="editDialogClosed"
      :close-on-click-modal="false">
      <!-- 修改用户表单区域 -->
      <el-form ref="editUserFormRef" :model="editUserForm" :rules="editUserFormRules" label-width="70px" class="login_form">
        <!-- 用户名 -->
        <el-form-item label="用户名">
          <el-input v-model="editUserForm.username" disabled></el-input>
        </el-form-item>
        <!-- 邮箱 -->
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editUserForm.email"></el-input>
        </el-form-item>
        <!-- 电话 -->
        <el-form-item label="电话" prop="mobile">
          <el-input v-model="editUserForm.mobile"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer" class="dialog-footer">
        <el-button @click="editDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="editUser()">确 定</el-button>
      </span>
    </el-dialog>
    <!-- 分配角色对话框 -->
    <el-dialog title="分配角色" :visible.sync="setRoleDialogVisible" width="50%" @close="setRoleDialogClosed"
      :close-on-click-modal="false">
      <div>
        <p>当前的用户：{{setRoleUserInfo.username}}</p>
        <p>当前的角色：{{setRoleUserInfo.role_name}}</p>
        <p>分配新角色：
          <el-select v-model="selectRoleId" placeholder="请选择">
            <el-option
              v-for="item in setRoleList"
              :key="item.id"
              :label="item.roleName"
              :value="item.id">
            </el-option>
          </el-select>
        </p>
      </div>
      <span slot="footer" class="dialog-footer">
        <el-button @click="setRoleDialogVisible = false">取 消</el-button>
        <el-button type="primary" @click="setRoleId()">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>

<script>
export default {
  data () {
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmail.test(value)) {
        // 合法的邮箱
        return cb()
      }
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表的参数对象
      queryInfo: {
        query: '',
        pagenum: 1,
        pagesize: 10
      },
      userlist: [],
      total: 0,
      // 控制对话框显示
      addDialogVisible: false,
      editDialogVisible: false,
      // 分配权限对话框
      setRoleDialogVisible: false,
      // 分配权限数据
      setRoleUserInfo: {},
      // 当前选中的角色
      selectRoleId: '',
      // 分配角色列表
      setRoleList: [],
      addUserForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      editUserForm: {},
      addUserFormRules: {
        username: [
          {
            required: true,
            message: '请输入用户名',
            trigger: 'blur'
          },
          {
            min: 3,
            max: 10,
            message: '用户名的长度在 3 到10 个字符',
            trigger: 'blur'
          }
        ],
        password: [
          {
            required: true,
            message: '请输入密码',
            trigger: 'blur'
          },
          {
            min: 6,
            max: 10,
            message: '密码的长度在 6 到10 个字符',
            trigger: 'blur'
          }
        ],
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入电话',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      },
      editUserFormRules: {
        email: [
          {
            required: true,
            message: '请输入邮箱',
            trigger: 'blur'
          },
          {
            validator: checkEmail,
            trigger: 'blur'
          }
        ],
        mobile: [
          {
            required: true,
            message: '请输入电话',
            trigger: 'blur'
          },
          {
            validator: checkMobile,
            trigger: 'blur'
          }
        ]
      }
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const {
        data: res
      } = await this.$http.get('users', {
        params: this.queryInfo
      })
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败！')
      }
      this.userlist = res.data.users
      this.total = res.data.total
    },
    // 每页数量变化
    handleSizeChange (newSize) {
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值发生变化
    handleCurrentChange (newPage) {
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关状态的改变
    async userStateChanged (userinfo) {
      console.log(userinfo)
      const {
        data: res
      } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败！')
      }
      this.$message.success('更新用户状态成功！')
    },
    // 添加用户关闭
    addDialogClosed () {
      this.$refs.addUserFormRef.resetFields()
    },
    // 添加用户
    addUser () {
      this.$refs.addUserFormRef.validate(async valid => {
        if (!valid) return
        const {
          data: res
        } = await this.$http.post('users', this.addUserForm)
        if (res.meta.status !== 201) return this.$message.error('用户创建失败！')
        this.$message.success('用户创建成功')
        // 隐藏对话框
        this.addDialogVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 展示修改用户
    async showEditDialog (id) {
      const {
        data: res
      } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.editUserForm = res.data
      this.editDialogVisible = true
    },
    // 关闭修改用户对话框
    editDialogClosed () {
      this.$refs.editUserFormRef.resetFields()
    },
    // 修改用户
    async editUser () {
      this.$refs.editUserFormRef.validate(async valid => {
        if (!valid) return
        const { data: res } = await this.$http.put(
          'users/' + this.editUserForm.id,
          {
            email: this.editUserForm.email,
            mobile: this.editUserForm.mobile
          })
        if (res.meta.status !== 200) return this.$message.error('更新用户信息失败！')
        this.$message.success('更新用户信息成功')
        // 隐藏对话框
        this.editDialogVisible = false
        // 重新获取用户列表
        this.getUserList()
      })
    },
    // 删除用户
    removeUserById (id) {
      // 弹框询问
      this.$confirm('此操作将永久删除该用户, 是否继续?', '提示',
        { confirmButtonText: '确定', cancelButtonText: '取消', type: 'warning' })
        .then(async () => {
          const { data: res } = await this.$http.delete('users/' + id)
          if (res.meta.status !== 200) {
            return this.$message.error('删除用户失败！')
          }
          // this.$message({ type: 'success', message: '删除成功!' })
          this.$message.success('删除用户成功!')
          this.getUserList()
        }).catch(() => {
          this.$message({
            type: 'info',
            message: '已取消删除'
          })
        })
    },
    async showSetRoleDialog (user) {
      this.setRoleUserInfo = user
      // 获取角色列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败！')
      }
      this.setRoleList = res.data
      this.setRoleDialogVisible = true
    },
    async setRoleId () {
      if (!this.selectRoleId) {
        return this.$message.info('请选择要分配的权限!')
      }
      const { data: res } = await this.$http.put(`users/${this.setRoleUserInfo.id}/role`, { rid: this.selectRoleId })
      if (res.meta.status !== 200) {
        this.$message.error('分配角色失败！')
      }
      this.$message.success('分配角色成功！')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    setRoleDialogClosed () {
      this.setRoleUserInfo = {}
      this.selectRoleId = ''
      this.setRoleList = []
    }
  }
}
</script>

<style lang="less" scoped>
</style>
